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Looking for a Joust and/or Robotron to add to my Defender who is sitting all lonely by itself lol. Would prefer a project to enjoy fixing but at this point I'm open to anything (after looking all these years, I'm at six total now and never found either) so even a fully restored will do. Prefer...

Williams 7641 Decoder Roms - Replacements, Pinouts and Programming This was an old message I posted to usenet back in 1996. Thought I might as well bring it here in case anyone needs the info: From - Tue Jul 23 08:49:43 1996 Path...

Defender - G07 - Green signal is rather yellow tinted Working on cleaning up my Defender and one of the issues is with my green colour on my G07 monitor. The Green signal is coming up with quite a yellow tint to it. This shows up in solid test patterns and in colour bars. In the colour bars...

Been looking for a nice Williams Joust for ages so might as well post here... working or not, anywhere in Central/Southern Ontario. Thanks! Tim

Williams Defender - Is power supply ground plate connected? I just noticed in my Defender that the power supply ground plate (the big huge plate under the power supply) is not connected to any of the other ground plates via the ground strapping. Mine had been messed with previously before I...

Starting a thread on my troubleshooting of my G07 in my Defender to figure out my Red gun problem. I've done the following: - Swapped Red & Green wires on Defender PCB to see if that was the cause, no change, Red gun still dead. - Swapped Red & Green wires on the neck PCB of the G07, no...

Well after the issues with my Defender, I turned my old IIgs monitor into a test bench. Works pretty well except for sync issues. Wiring is easy, db15 and just colour to colour, sync and ground. However with Defender being individual sync and the IIgs being composite sync (but seems to...

Black Knight - Center Ramp "Mystery" - Missing actuator I just noticed that my Black Knight appears to be missing the actuator rod or whatever goes in there for the Center Ramp which has the "Mystery" lamp. Can someone please take a close up pic of what should be there so I can get an idea of...

Another issue on my old G07 is it's doing the "hula", slow wave up the screen. I've checked the large resistor as per Randy's chart and get 106vdc (instead of 120vdc) at the white wire end and 160vdc (instead of 145vdc) on the other side of the resistor. Anyone have any experience with this...

Does anyone have or know of a Rejuvenator available for use/rent/beer supplied while watching/etc in the Toronto area? My G07 on my old Defender appears to have lost the red (swapped green and red wires on the neck board and problem stays with the red gun. Going to replace the transistors just...

Has anyone found a source for the parts of rate A-8762 retrofit kit (the microswitch upgrade kit). Looks like my machine never got it installed. Thanks Tim

While playing tonight, we heard the machine give a clapping/applause/crowd whistling sound effect... never heard this before nor have I heard it in any of the sound diagnostic tests. Appears to have been when doing rather well and getting close to the current high score (good round, multiple...

Does the Williams System 7 (Black Knight in particular) save YOUR high score? I reset the "backup high score" to 0 and pressed the reset high score so the daily high score was reset to 0. However when playing, it never seems to save any high scores we get... --- Does the high score setting...

Wow I've never had such a hard time finding a PDF for something but this one has eluded me. Does anyone have scans of the black knight schematics???? I can find the Operators Manual but no dice on anything else. I'll likely break down and buy a new reproduction manual from Marco's or...

Looking for a Galaga Hi Score save / Enhancement kit. Drop me a line if you have one for sale. Thanks

Well finally got the bug again many years later (I used to run the Defender webpage about 10-15 years ago) and wanted another classic to add to my Defender. Found this machine in the local Kijiji and decided to "fix'er up". Thankfully it is fully working at present and someone has already...